Sponge balls are part of classic magic.EffectAn absolute essential for every magicianâ‚¬â„¢s toolbox, sponge balls can be performed with in a huge variety of ways, making them not only handy for and trusted by magicians everywhere, but very popular with audiences everywhere, too. Make them disappear from your hand and appear in the hand of a spectator! Make them multiply on demand! The list goes on and on and on. Make sure you check out our great list of sponge ball videos, which will teach you everything you need to know. Instructions included.